Higgs Physics Beyond the Standard Model

TL;DR

This paper explores theories beyond the Standard Model involving composite Higgs models and effective Lagrangian approaches, emphasizing how Higgs coupling measurements at the LHC can reveal new physics at the TeV scale.

Contribution

It provides a comprehensive overview of composite Higgs models and discusses model-independent methods to study new physics effects through Higgs couplings.

Findings

Higgs coupling deviations can indicate new physics at TeV scales.

High-luminosity LHC can probe new physics via precision Higgs measurements.

Effective Lagrangian approach offers a model-independent framework for NP studies.

Abstract

Higgs physics beyond the Standard Model (SM) is presented in the context of an underlying strong dynamics of electroweak symmetry breaking (EWSB) as given by composite Higgs models. Subsequently, the study of New Physics (NP) effects in a more model-independent way through the effective Lagrangian approach is briefly sketched before moving on to the investigation of NP through Higgs coupling measurements. Depending on the precision on the extracted couplings, NP scales up to the TeV range can be probed at the high-luminosity option of the LHC, if the coupling deviations arise from mixing effects or from some underlying strong dynamics.